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Re: 2000 RX300 Codes P1130, P1135, and P1150

Originally Posted by nhparrot

First look should be A/F Sensor (Bank 1 Sensor 1)

1130 and 1135 are 100% AF sensor bank one. You could easy check that sensor with ohm meter, and see if all the connections are open. It is usually heater problem on those sensors. I had to replace one of them 5 days ago, same codes as above. 1150 indicates the front AF sensor, you should check that one also with ohm meter.

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